1d2ec3abaSSangbeom Kim /* 2d2ec3abaSSangbeom Kim * sound/soc/samsung/smdk_wm8994pcm.c 3d2ec3abaSSangbeom Kim * 4d2ec3abaSSangbeom Kim * Copyright (c) 2011 Samsung Electronics Co., Ltd 5d2ec3abaSSangbeom Kim * http://www.samsung.com 6d2ec3abaSSangbeom Kim * 7d2ec3abaSSangbeom Kim * This program is free software; you can redistribute it and/or modify it 8d2ec3abaSSangbeom Kim * under the terms of the GNU General Public License as published by the 9d2ec3abaSSangbeom Kim * Free Software Foundation; either version 2 of the License, or (at your 10d2ec3abaSSangbeom Kim * option) any later version. 11d2ec3abaSSangbeom Kim */ 12d2ec3abaSSangbeom Kim #include <sound/soc.h> 13d2ec3abaSSangbeom Kim #include <sound/pcm.h> 14d2ec3abaSSangbeom Kim #include <sound/pcm_params.h> 15d2ec3abaSSangbeom Kim 16d2ec3abaSSangbeom Kim #include "../codecs/wm8994.h" 17d2ec3abaSSangbeom Kim #include "dma.h" 18d2ec3abaSSangbeom Kim #include "pcm.h" 19d2ec3abaSSangbeom Kim 20d2ec3abaSSangbeom Kim /* 21d2ec3abaSSangbeom Kim * Board Settings: 22d2ec3abaSSangbeom Kim * o '1' means 'ON' 23d2ec3abaSSangbeom Kim * o '0' means 'OFF' 24d2ec3abaSSangbeom Kim * o 'X' means 'Don't care' 25d2ec3abaSSangbeom Kim * 26d2ec3abaSSangbeom Kim * SMDKC210, SMDKV310: CFG3- 1001, CFG5-1000, CFG7-111111 27d2ec3abaSSangbeom Kim */ 28d2ec3abaSSangbeom Kim 29d2ec3abaSSangbeom Kim /* 30d2ec3abaSSangbeom Kim * Configure audio route as :- 31d2ec3abaSSangbeom Kim * $ amixer sset 'DAC1' on,on 32d2ec3abaSSangbeom Kim * $ amixer sset 'Right Headphone Mux' 'DAC' 33d2ec3abaSSangbeom Kim * $ amixer sset 'Left Headphone Mux' 'DAC' 34d2ec3abaSSangbeom Kim * $ amixer sset 'DAC1R Mixer AIF1.1' on 35d2ec3abaSSangbeom Kim * $ amixer sset 'DAC1L Mixer AIF1.1' on 36d2ec3abaSSangbeom Kim * $ amixer sset 'IN2L' on 37d2ec3abaSSangbeom Kim * $ amixer sset 'IN2L PGA IN2LN' on 38d2ec3abaSSangbeom Kim * $ amixer sset 'MIXINL IN2L' on 39d2ec3abaSSangbeom Kim * $ amixer sset 'AIF1ADC1L Mixer ADC/DMIC' on 40d2ec3abaSSangbeom Kim * $ amixer sset 'IN2R' on 41d2ec3abaSSangbeom Kim * $ amixer sset 'IN2R PGA IN2RN' on 42d2ec3abaSSangbeom Kim * $ amixer sset 'MIXINR IN2R' on 43d2ec3abaSSangbeom Kim * $ amixer sset 'AIF1ADC1R Mixer ADC/DMIC' on 44d2ec3abaSSangbeom Kim */ 45d2ec3abaSSangbeom Kim 46d2ec3abaSSangbeom Kim /* SMDK has a 16.9344MHZ crystal attached to WM8994 */ 47d2ec3abaSSangbeom Kim #define SMDK_WM8994_FREQ 16934400 48d2ec3abaSSangbeom Kim 49d2ec3abaSSangbeom Kim static int smdk_wm8994_pcm_hw_params(struct snd_pcm_substream *substream, 50d2ec3abaSSangbeom Kim struct snd_pcm_hw_params *params) 51d2ec3abaSSangbeom Kim { 52d2ec3abaSSangbeom Kim struct snd_soc_pcm_runtime *rtd = substream->private_data; 53d2ec3abaSSangbeom Kim struct snd_soc_dai *codec_dai = rtd->codec_dai; 54d2ec3abaSSangbeom Kim struct snd_soc_dai *cpu_dai = rtd->cpu_dai; 55d2ec3abaSSangbeom Kim unsigned long mclk_freq; 56d2ec3abaSSangbeom Kim int rfs, ret; 57d2ec3abaSSangbeom Kim 58d2ec3abaSSangbeom Kim switch(params_rate(params)) { 59d2ec3abaSSangbeom Kim case 8000: 60d2ec3abaSSangbeom Kim rfs = 512; 61d2ec3abaSSangbeom Kim break; 62d2ec3abaSSangbeom Kim default: 63d2ec3abaSSangbeom Kim dev_err(cpu_dai->dev, "%s:%d Sampling Rate %u not supported!\n", 64d2ec3abaSSangbeom Kim __func__, __LINE__, params_rate(params)); 65d2ec3abaSSangbeom Kim return -EINVAL; 66d2ec3abaSSangbeom Kim } 67d2ec3abaSSangbeom Kim 68d2ec3abaSSangbeom Kim mclk_freq = params_rate(params) * rfs; 69d2ec3abaSSangbeom Kim 70d2ec3abaSSangbeom Kim /* Set the codec DAI configuration */ 71d2ec3abaSSangbeom Kim ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_DSP_B 72d2ec3abaSSangbeom Kim | SND_SOC_DAIFMT_IB_NF 73d2ec3abaSSangbeom Kim | SND_SOC_DAIFMT_CBS_CFS); 74d2ec3abaSSangbeom Kim if (ret < 0) 75d2ec3abaSSangbeom Kim return ret; 76d2ec3abaSSangbeom Kim 77d2ec3abaSSangbeom Kim /* Set the cpu DAI configuration */ 78d2ec3abaSSangbeom Kim ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_B 79d2ec3abaSSangbeom Kim | SND_SOC_DAIFMT_IB_NF 80d2ec3abaSSangbeom Kim | SND_SOC_DAIFMT_CBS_CFS); 81d2ec3abaSSangbeom Kim if (ret < 0) 82d2ec3abaSSangbeom Kim return ret; 83d2ec3abaSSangbeom Kim 84d2ec3abaSSangbeom Kim ret = snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_FLL1, 85d2ec3abaSSangbeom Kim mclk_freq, SND_SOC_CLOCK_IN); 86d2ec3abaSSangbeom Kim if (ret < 0) 87d2ec3abaSSangbeom Kim return ret; 88d2ec3abaSSangbeom Kim 89d2ec3abaSSangbeom Kim ret = snd_soc_dai_set_pll(codec_dai, WM8994_FLL1, WM8994_FLL_SRC_MCLK1, 90d2ec3abaSSangbeom Kim SMDK_WM8994_FREQ, mclk_freq); 91d2ec3abaSSangbeom Kim if (ret < 0) 92d2ec3abaSSangbeom Kim return ret; 93d2ec3abaSSangbeom Kim 94d2ec3abaSSangbeom Kim /* Set PCM source clock on CPU */ 95d2ec3abaSSangbeom Kim ret = snd_soc_dai_set_sysclk(cpu_dai, S3C_PCM_CLKSRC_MUX, 96d2ec3abaSSangbeom Kim mclk_freq, SND_SOC_CLOCK_IN); 97d2ec3abaSSangbeom Kim if (ret < 0) 98d2ec3abaSSangbeom Kim return ret; 99d2ec3abaSSangbeom Kim 100d2ec3abaSSangbeom Kim /* Set SCLK_DIV for making bclk */ 101d2ec3abaSSangbeom Kim ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C_PCM_SCLK_PER_FS, rfs); 102d2ec3abaSSangbeom Kim if (ret < 0) 103d2ec3abaSSangbeom Kim return ret; 104d2ec3abaSSangbeom Kim 105d2ec3abaSSangbeom Kim return 0; 106d2ec3abaSSangbeom Kim } 107d2ec3abaSSangbeom Kim 108d2ec3abaSSangbeom Kim static struct snd_soc_ops smdk_wm8994_pcm_ops = { 109d2ec3abaSSangbeom Kim .hw_params = smdk_wm8994_pcm_hw_params, 110d2ec3abaSSangbeom Kim }; 111d2ec3abaSSangbeom Kim 112d2ec3abaSSangbeom Kim static struct snd_soc_dai_link smdk_dai[] = { 113d2ec3abaSSangbeom Kim { 114d2ec3abaSSangbeom Kim .name = "WM8994 PAIF PCM", 115d2ec3abaSSangbeom Kim .stream_name = "Primary PCM", 116d2ec3abaSSangbeom Kim .cpu_dai_name = "samsung-pcm.0", 117d2ec3abaSSangbeom Kim .codec_dai_name = "wm8994-aif1", 118d2ec3abaSSangbeom Kim .platform_name = "samsung-audio", 119d2ec3abaSSangbeom Kim .codec_name = "wm8994-codec", 120d2ec3abaSSangbeom Kim .ops = &smdk_wm8994_pcm_ops, 121d2ec3abaSSangbeom Kim }, 122d2ec3abaSSangbeom Kim }; 123d2ec3abaSSangbeom Kim 124d2ec3abaSSangbeom Kim static struct snd_soc_card smdk_pcm = { 125d2ec3abaSSangbeom Kim .name = "SMDK-PCM", 126d2ec3abaSSangbeom Kim .dai_link = smdk_dai, 127d2ec3abaSSangbeom Kim .num_links = 1, 128d2ec3abaSSangbeom Kim }; 129d2ec3abaSSangbeom Kim 130d2ec3abaSSangbeom Kim static int __devinit snd_smdk_probe(struct platform_device *pdev) 131d2ec3abaSSangbeom Kim { 132d2ec3abaSSangbeom Kim int ret = 0; 133d2ec3abaSSangbeom Kim 134d2ec3abaSSangbeom Kim smdk_pcm.dev = &pdev->dev; 135d2ec3abaSSangbeom Kim ret = snd_soc_register_card(&smdk_pcm); 136d2ec3abaSSangbeom Kim if (ret) { 137d2ec3abaSSangbeom Kim dev_err(&pdev->dev, "snd_soc_register_card failed %d\n", ret); 138d2ec3abaSSangbeom Kim return ret; 139d2ec3abaSSangbeom Kim } 140d2ec3abaSSangbeom Kim 141d2ec3abaSSangbeom Kim return 0; 142d2ec3abaSSangbeom Kim } 143d2ec3abaSSangbeom Kim 144d2ec3abaSSangbeom Kim static int __devexit snd_smdk_remove(struct platform_device *pdev) 145d2ec3abaSSangbeom Kim { 146d2ec3abaSSangbeom Kim snd_soc_unregister_card(&smdk_pcm); 147d2ec3abaSSangbeom Kim platform_set_drvdata(pdev, NULL); 148d2ec3abaSSangbeom Kim return 0; 149d2ec3abaSSangbeom Kim } 150d2ec3abaSSangbeom Kim 151d2ec3abaSSangbeom Kim static struct platform_driver snd_smdk_driver = { 152d2ec3abaSSangbeom Kim .driver = { 153d2ec3abaSSangbeom Kim .owner = THIS_MODULE, 154d2ec3abaSSangbeom Kim .name = "samsung-smdk-pcm", 155d2ec3abaSSangbeom Kim }, 156d2ec3abaSSangbeom Kim .probe = snd_smdk_probe, 157d2ec3abaSSangbeom Kim .remove = __devexit_p(snd_smdk_remove), 158d2ec3abaSSangbeom Kim }; 159d2ec3abaSSangbeom Kim 160d2ec3abaSSangbeom Kim static int __init smdk_audio_init(void) 161d2ec3abaSSangbeom Kim { 162d2ec3abaSSangbeom Kim return platform_driver_register(&snd_smdk_driver); 163d2ec3abaSSangbeom Kim } 164d2ec3abaSSangbeom Kim 165d2ec3abaSSangbeom Kim module_init(smdk_audio_init); 166d2ec3abaSSangbeom Kim 167d2ec3abaSSangbeom Kim static void __exit smdk_audio_exit(void) 168d2ec3abaSSangbeom Kim { 169d2ec3abaSSangbeom Kim platform_driver_unregister(&snd_smdk_driver); 170d2ec3abaSSangbeom Kim } 171d2ec3abaSSangbeom Kim 172d2ec3abaSSangbeom Kim module_exit(smdk_audio_exit); 173d2ec3abaSSangbeom Kim 174d2ec3abaSSangbeom Kim MODULE_AUTHOR("Sangbeom Kim, <sbkim73@samsung.com>"); 175d2ec3abaSSangbeom Kim MODULE_DESCRIPTION("ALSA SoC SMDK WM8994 for PCM"); 176d2ec3abaSSangbeom Kim MODULE_LICENSE("GPL"); 177